Abstract
Sorghum variety Longza 17 was used as the experimental organism in a study of the effects of different types of sodium salt (two neutral salts, NaCl and Na2SO4; and two alkaline salts, NaHCO3 and Na2CO3), at an equivalent Na+ concentration (100 mmol·L−1) on leaf growth parameters and PSII and PSI function by using the Fast Chlorophyll Fluorescence Induction Dynamics technique and 820 nm light reflectance curves. The results showed that at Na+ concentration of 100 mmol·L−1, different types of sodium salt stress significantly inhibited the growth of sorghum plants. Different types of sodium salt stress showed significant inhibition on the activities of PSII and PSI in sorghum leaves, the impact of different types of sodium salt on the activities of PSII and PSI in sorghum leaves was consistent, listed from greatest to least impact as Na2CO3 > NaHCO3 > Na2SO4 > NaCl. The effects of alkaline salt stress on the growth and photosynthetic properties of sorghum were greater than those under the neutral salt stress, therefore, in addition to considering the impact of Na+ concentration in the sorghum planting area, emphasis should also be given to the influence of the degree of alkalization, especially the higher alkalinity of Na2CO3.
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Claims 6
Claim · model-written summary
Sodium salt stresses significantly inhibited sorghum growth.
- Treatment
- different types of sodium salt stresse0
- Outcome
- growth of sorghum plantse0
- Direction
- inhibitede0
- Qualifier
- 100 mmol·L−1e0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at Na+ concentration of 100 mmol·L−1, different types of sodium salt stress significantly inhibited the growth of sorghum plants.”
Claim · model-written summary
Sodium salt stresses significantly inhibited PSII activity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Different types of sodium salt stress showed significant inhibition on the activities of PSII and PSI in sorghum leaves”
Claim · model-written summary
Sodium salt stresses significantly inhibited PSI activity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Different types of sodium salt stress showed significant inhibition on the activities of PSII and PSI in sorghum leaves”
Claim · model-written summary
The inhibitory impact on both photosystems ranked Na2CO3, NaHCO3, Na2SO4, then NaCl.
- Outcome
- activities of PSII and PSIe0
- Direction
- greatest to least impacte0
- Qualifier
- Na2CO3 > NaHCO3 > Na2SO4 > NaCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the impact of different types of sodium salt on the activities of PSII and PSI in sorghum leaves was consistent, listed from greatest to least impact as Na2CO3 > NaHCO3 > Na2SO4 > NaCl.”
Claim · model-written summary
Alkaline salts affected sorghum growth and photosynthesis more than neutral salts.
- Treatment
- alkaline salt stresse0
- Outcome
- growth and photosynthetic propertiese0
- Direction
- greater thane0
- Comparator
- neutral salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effects of alkaline salt stress on the growth and photosynthetic properties of sorghum were greater than those under the neutral salt stress”
Claim · model-written summary
The authors recommend attention to alkalization in sorghum planting areas.
- Outcome
- emphasis should also be given to the influence of the degree of alkalizatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the sorghum planting area, emphasis should also be given to the influence of the degree of alkalization, especially the higher alkalinity of Na2CO3.”
The same questions in other papers
salinity · physiology: photosynthesis · SorghumPositive and negative results
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.